baber/WOPTO huggingface dataset:
Patent GB-1163919-A (GB)
Title: Device for Automatic Sequential Image Transposition and High Density Microfacsimile System
Inventor: BERGLUND ROBERT SODERGREN
IPC: H04N1/387
Filed: 1966-12-09
Abstract: 1,163,919. Facsimile system. MINNESOTA MINING & MFG. CO. 9 Dec., 1966, No. 55361/66. Heading H4F. [Also in Division H1] The Specification describes a microfacsimile system, whereby engineering drawings, for example, scanned with a resolution of 1000 lines are directly recorded by one electron beam of 10 Á diameter with a resolution of 100 lines/mm. Means for producing such a sharp electron beam are described together with means for focusing it and checking for astigmatism. Only part of the available recording area may be used for any one reproduction, means determining the end of the recording of a first image and causing the movement of the electron beam to a different area of the recording area for the recording of a second image. The drawing &c. is scanned in a picture generator 101, Fig. 1, by a 1000 line raster and the resultant video signal is modulated on to a carrier at 104, redetected at 107 and used to amplitude modulate the flow of a stream of electrons from a cathode-ray tube cathode 10, Fig. 2. A first focus of the electron beam is obtained between grid 11 and anode 12, a second at 15 between magnetic lenses 16 and 17 and a third having the desired beam diameter of 10 Á in the plan of the scan-field 19. Astigmatism of the beam is controlled by a stigmater 20, comprising Fig. 3, a ring of electrostatically charged, mutually insulated rods 26 axially surrounding and parallel with the beam axis. To determine if the beam is in focus and free from astigmatism, the normal workpiece 19, on which the drawing is directly reproduced by the electron beam, is replaced by a focusing target 120, Fig. 4, comprising a vapour deposited gold cross 119 on an aluminium substrate. The cross has arms of less thickness than the beam width-i.e. less than 10 Á. As the target is scanned by the electron beam, secondary electrons are produced by the cross, which are fed to a T.V. monitor 122. Astigmatism or bad focusing of the beam will show in the arms of the displayed cross not being equal. A line counter 110 determines when one picture has been recorded and actuates device 111 for adjusting the bias on the deflection signals applied to the cathode-ray tube so as to shift the electron beam to its rear area.
Patent GB-1312386-A (GB)
Title: Hydraulic roof-support frame
IPC: E21D11/14
Filed: 1971-11-29
Abstract: 1312386 Mine roof support frames HERMANN HEMSCHEIDT MASCHINENFABRIK 29 Nov 1971 [23 Dec 1970] 55361/71 Heading E1P A mine roof support frame consists of a central section 1, 6, 7 of greater load-bearing area and load-bearing capacity than adjacent end units 12, 14 which are articulated thereto as at 10, 11 at both roof and floor levels; the roof and floor beams being selectively locked to-gether by sliding shoes 20 to form a rigid structure when desired.
Patent GB-1415890-A (GB)
Title: Flow control valves
IPC: G05D7/01
Filed: 1972-12-01
Abstract: 1415890 Valves GRISWOLD CONTROLS 1 Dec 1972 [2 Dec 1971] 55547/72 Heading F2V Flow control valve 10, wherein the flow rate therethrough remains substantially constant regardless of the pressure differential thereacross, comprises a stationary housing 11 which is flanged at one end 12 for limiting the outward movement of a cupped member 18 subject to the bias of a spring 22. Member 18 has formed therein at least one series of ports 41, 42, 43, and 44 shaped and disposed such that the total width of the opening(s) decreases toward the cup end wall 19. In addition to such ports, the precise disposition of which may be as depicted in Figs. 4 and 5, not shown, the cupped member includes circular by-pass passages immediately adjacent to the wall 19. A plurality of such valves may be disposed in one housing as is depicted in Fig. 2, not shown.
Patent GB-1206654-A (GB)
Title: Improvements relating to methods and tools for applying cable markers to electric cables
Inventor: WEBSTER JOHN
IPC: H01B13/34
Filed: 1967-12-11
Abstract: 1,206,654. Applying resilient sleeves to cables. CRITCHLEY BROS. Ltd. 3 Dec., 1968 [11 Dec., 1967], No. 56188/67. Heading F2S. A tool for use in applying resilient sleeves or clips 18 to a cable takes the form of a mandrel having a portion 15 tapering toward one end and a point or socket at the other end. The mandrel is required to consist of a metal core coated with an anti-friction material such as P.T.F.E. The coating covers at least part of the tapered portion, and may cover the whole surface of the mandrel. In use, a cable 14 is impaled on the point or fitted, as shown, in the socket and one or more sleeves or clips are slid over the tapered portion of the mandrel and thence on to the cable.
Patent GB-1417722-A (GB)
Title: Geophysical surveying system
IPC: H01Q9/00
Filed: 1972-12-08
Abstract: 1417722 Pulse radar; pulse generators; aerials; TR switching GEOPHYSICAL SURVEY SYSTEMS Inc 8 Dec 1972 [3 Jan 1972] 56773/72 Headings H4D H3P H4A and H4L  A geophysical surveying system utilizes a radar which transmits a pulse of not more than two nanoseconds between 10% and 90% amplitude rise points, and has a common transmitting/ receiving aerial 4, Fig. 1.  Transmitter, Figs. 4, 5A.-D.C. applied to the collector of transistor Q 1 causes current to pass through the collector-base junction, the secondary of pulse transformer T1 and R4 to earth. When a triggering pulse is applied to the primary of transformer T1 and the transistorswitches the charge in capacitors C3, C4 to produce pulses as shown by Fig. 5A. TR switching. Fig. 7.-The aerial is connected to port 3, the receiver to port 2 and an impedance, matched to the aerial, is connected to port 4. When pulses developed across resistors R7, R8 swing toward zero and cross the zero axis, see Fig. 5B (not shown), the diodes D2 ... D5 block current flow and echo signals occurring immediately thereafter are applied to the receiver. In another TR switch a balance is incorporated, Fig. 8 (not shown). Aerials, Figs. 9, 10.-A suitable aerial consists of elements 20, 21, Fig. 9, which are thin flat copper strips mounted on a substrate of epoxy filled glass, the ends of the elements being connected by resistors in a sine-wave distribution. In an alternative embodiment the aerial is as illustrated in Fig. 10; dimensions are given. Pulse radar, Fig. 1.-Receiver 6 may be a sampling oscilloscope.
Patent GB-1329986-A (GB)
Title: Method for producing mineral products
IPC: D21H17/67
Filed: 1970-12-01
Abstract: 1329986 Treating minerals J M HUBER CORP 1 Dec 1970 [15 Dec 1969] 57083/70 Heading C1A A method of treating minerals, especially clays to reduce the particle size, e.g. to below 2 microns and to increase the brightness comprises subjecting an aqueous slurry of the minerals to a magnetic field, preferably of at least 1000 gauss, to effect separation of magnetically susceptible contaminants, withdrawing the slurry from the field and agitating the slurry in the presence of a granular grinding medium which is harder than the mineral solids in the slurry and separating the mineral particles from the slurry. The method is particularly suited to the treatment of kaolin and the production therefrom of a delaminated clay. Suitable grinding media are glass beads, sand and fused alumina.
Patent GB-1148910-A (GB)
Title: Improvements in or relating to telecommunication exchanges
Inventor: SHAW RICHARD GEOFFREY
IPC: H04Q3/00
Filed: 1967-12-15
Abstract: 1,148,910. Automatic exchange systems. STANDARD TELEPHONES & CABLES Ltd. 15 Dec., 1967, No. 57104/67. Heading H4K. A line-finder start circuit, Fig. 1, comprises a transistor VT1 for each line, the base of VT1 being connected to a tap between resistors R2 and R3 which are in each current loop with resistor R1 and are such as to switch VT1  on if the loop goes off-hook, the emitters of all such transistors VT1 being commoned to the base of a start relay transistor VT2, the collectors of VT1 being commoned to the collector of VT2 which has the start relay in circuit. Switching on of any transistor VT1 switches on VT2 to operate the start relay. The test circuit which detects the calling line is shown in Fig. 2, VT3 switching on to switch VT4 to operate a fast test relay. When the line is busied the H-wire immobilizes the line start circuit.
Patent GB-1291890-A (GB)
Title: An hydraulically operated friction clutch assembly
IPC: F16D43/284
Filed: 1969-11-25
Abstract: 1291890 Clutch control VALLAKRA MEKANISKA VERKSTAD SVEN & BERTIL JONSSON 25 Nov 1969 [26 Nov 1968] 57540/69 Heading F2L  An electro-hydraulically controlled friction clutch for a motor vehicle power-take-off comprises a friction clutch 3 which is engaged by supplying pressure liquid to an engaging servo piston 15 through a solenoid controlled valve 5 that is opened by an electric sensing circuit when the clutch input shaft speed exceeds that of the clutch output shaft. A drag ring 44 on the clutch input shaft 1 actuates a switch 42 which, according to the direction of rotation of the input shaft 1, connects the solenoid 45 of the valve 5 either to a contact 33 or to a contact 34 carried by a ring 24 fast with a clutch drum 10 and having a lost-motion connection with a pinion 25 which drivesa final output shaft 2. The pinion 25 carries contacts 35, 36 respectively engageable with the contacts 33, 34. When the clutch 3 is disengaged drag pins 48 tend to rotate the clutch drum 10 and ring 24 at the speed of the input shaft 6.  Operation.-When the input shaft 1 rotates a forward direction r the drag ring 44 actuates the switch 42 to connect the solenoid 45 to the contact 33. Whilst the output speed exceeds that of the input, the pinion 25 tends to rotate faster than the ring 24 and thus the contacts 33, 35 are separated to prevent energization of the solenoid 45. When the input speed exceeds that of the output, the contact 33 engages the contact 35 to energize the solenoid 45 which supplies pressure liquid to the servo piston 15 for clutch engagement. When the input shaft 1 rotates reversely the solenoid 45 is connected to the contact 34 and the contacts 34, 36 are closed when the input shaft speed exceeds that of the output shaft. A manual override switch 49, 50, 51 permits engagement of the clutch whilst the input shaft speed is less than that of the output shaft.
Patent GB-1380567-A (GB)
Title: Gaseous fuel burner
IPC: F23N5/10
Filed: 1971-12-14
Abstract: 1380567 Dual flow-rate burners ROBERTSHAW CONTROLS CO 14 Dec 1971 [15 Dec 1970] 58031/71 Heading F4T A burner comprises a housing having a first chamber 88 and a second chamber 96 communicating with chamber 88 via an aperture 90 of small cross-section relative to that of main gas outlet ports 84 from chamber 88, the chamber 96 having gas outlet ports 92 and the housing having a single inlet 82 only for fuel gas whereby at a normal fuel flow rate gas issues from both ports 84 and 92 to form flame patterns as shown in Fig. 6 while at a lower flow rate little gas issues from ports 92 and the flames at ports 84 have a pattern as shown in Fig. 5. At the lower flow rate the flames from ports 84 pass through openings 112 in a flame spreader 110, having wind-guard tabs 113, to heat a thermocouple T which is heated by flame from ports 92 at the normal fuel flow rate. Chamber 96 has air inlet holes 98 and forms a mixing chamber for fuel gas passing from aperture 90 to ports 92. In a modified burner, Figs. 10-14 (not shown), the main flame at the normal flow rate is above a flame spreader and impinges on an annular surface (322) thereon to give better control of the normal flow rate flame characteristics. The burner 78 has a normal/low fuel flow rate ratio of at least 5/1 and is connected by a thermocouple cable C and a single gas conduit to a control device of the type forming the subject matter of Specification 1,380,568.
Patent GB-1239780-A (GB)
Title: Improvements in or relating to communication systems
Inventor: FEDER HERBERT SAMUEL
IPC: H04Q11/04
Filed: 1968-12-11
Abstract: 1,239,780. Automatic exchange systems; volume control. WESTERN ELECTRIC CO. Inc. 11 Dec., 1968 [13 Dec., 1967], No. 58796/68. Headings H4K and H4R. In a T.D.M. system signals from a plurality of substations are sampled simultaneously, the destination addresses are added to each sample at the exchange and the samples are simultaneously forwarded to the appropriate receiving substations. As described the substations are arranged in groups. During each time slot amplitude modulated speech samples taken from one substation of each group are coded to P.C.M. form. After conversion of each to parallel form all P.C.M. samples in a single time slot are entered during the next time slot together with the destination group addresses, into different stages of a domain wall shift register of the type disclosed in Specification 1,185,731, and the contents of the shift register are circulated once during that time slot. As a sample passes the stage of the register associated with the wanted group a comparator associated with that group recognizes the stored destination group address and gates the associated P.C.M. sample out to a store common to the group. During the following time slot these samples are decoded to amplitude form and stored until the next time slot in which they are passed to the destination substations. Calls between substations in the same group are established via dummy substations in another group, e.g. the trunk groups. The system described is one P.B.X. of a number in a system of the type described in Specification 1,029,204 and employing a common central control. The common control processes all the switching information and supplies data relating to the connections to be established within a P.B.X. (e.g. substation to digit trunk during dialling or substation to substation during speech &c.) during each time slot. Each P.B.X. is controlled by a reciroulating store which reads out the identities of the gates to be opened during each time slot. Alongside the address of each substation is stored a coded representation of the amplitude level required and this representation is used to switch one of a group of amplifiers into the output of the P.C.M. decoder. The substations are of the 4 wire type and each group of substations is connected via a send bus and a receive bus to a coder and a decoder associated with the group. The recirculating store determines via translator which particular substations within a group are to be connected to the send bus and to the receive bus respectively during each time slot. Although in the system detailed the signal transmitted between substations is speech, data and wide band signals such as television and carrier facilities are mentioned. Many of the techniques employed are detailed in Specification 921,384.
Patent GB-1458679-A (GB)
Title: Package
IPC: B65D73/00
Filed: 1973-12-19
Abstract: 1458679 Securing articles to cards GILBRETH CO 19 Dec 1973 [10 Jan 1973] 58880/73 Heading B8C A packaging device for an article comprises a card 20, a tube 26 of heat shrinkable plastics adhered to the surface of the card, and card portions 24 adapted to lie within part of the tube to be trapped between an article, for example a bottle, placed in the tube and the tube when shrunk. The portions or tongues 24 may be part of a flap 21 which may stick to the rest of the card, or may be located on flaps at each end of the card.
Patent GB-1376266-A (GB)
Title: Cold-rolled steel sheet for pressforming
IPC: C21D8/04
Filed: 1972-12-21
Abstract: 1376266 Steel sheet compositions NIPPON STEEL CORP 21 Dec 1972 [27 Dec 1971 11 Oct 1972] 59052/72 Heading C7A A cold-rolled steel sheet which possesses improved press-formability is comprised by weight, of:- less than 0À08% carbon 0À05 to 0À4% manganese 0À015 to 0À1% silicon 0À01 to 0À1% aluminium (acid-soluble) 0À003 to 0À015% nitrogen the balance being iron and impurities. The sheet is formed by hot-rolling an ingot or slab at temperatures preferably over 800 C, coiling, coldrolling, continuous annealing at 680-900‹C, and preferably overageing at 300 to 500‹C. A vacuum degassing treatment may have been incorporated in order to reduce the carbon content to within 0À001 to 0À009%.
Patent GB-1194700-A (GB)
Title: Improvements in or relating to Drive Station Frames for Longwall Conveyors
IPC: E21C29/16
Filed: 1967-12-29
Abstract: 1,194,700. Endless conveyers. GEWERKSCHAFT EISENHUTTE WESTFALIA. 29 Dec., 1967 [24 Oct., 1967], No. 59209/67. Heading B8A. [Also in Division E1] A drive station assembly for a longwall mining installation involving a face conveyer and a winning machine movable along the conveyer has two parallel side members 39, 39<SP>1</SP> of which one 39<SP>1</SP> is in the form of a hollow girder in which is located a sprocket wheel 44 for drivably engaging the haulage chain 45 of the winning machine and the other 39 is in the form of a plate. Preferably the side member 39<SP>1</SP> is rectangular in cross-section, being formed by a U-shaped casting which is closed off by an outer wall 49 being welded thereto. When the member 39 is incorporated in the assembly, the inner face of the inner wall 46 of the member 39<SP>1</SP> is in alignment with the outer face of the adjacent side wall of the conveyer and the winning machine haulage chain 45 extends along a rectilinear course between chain guides on the conveyer and the sprocket wheel 44. The other side member 39 carries the drive means 41, 41<SP>1</SP> for the scraper chain or chains of the conveyer. The gear boxes 41<SP>1</SP>, 50 of the drive means 41, 41<SP>1</SP> and the drive means 50, 51 for the sprocket wheel 44 are secured to the outer sides of the appropriate of the side members 39, 39<SP>1</SP>, which are of a length substantially in correspondence with the length of the gear-boxes.
Patent GB-1388597-A (GB)
Title: Read write structure for programme cards
IPC: H03M7/24
Filed: 1972-04-19
Abstract: 1388597 Magnetic card reader-writer system ING C OLIVETTI & C SpA 19 April 1972 [22 April 1971] 59393/72 Divided out of 1388593 Heading G4M  A magnetic card reader-writer for computer program cards has two side plates 201 carrying two parallel card guide plates 202, 203 a magnetic head 207 mounted on one side plate and a belt co-operating with a pressure wheel to transport a card through the reader. The side plates are arranged so that the edges of the card contact their inner surfaces. The guide plates are recessed to receive the rollers and the head. The reader-writer contains a card sensor comprising a switch 206, an arm 291 pivoted at 262 and a sensing portion pivoted at 290. One arm 292 of the sensing portion is pivoted when a card is sensed. When the card passes under another arm 293 the arm 291 is pivoted to operate the switch.
Patent GB-1366450-A (GB)
Title: System for axial locking of the fuel assemblies of a nuclear reac tor
IPC: G21C5/06
Filed: 1972-12-28
Abstract: 1366450 Reactors ELECTRICITE DE FRANCE 28 Dec 1972 [7 Jan 1972] 59875/72 Heading G6C In a sodium-cooled fast reactor, the core assemblies 17, 17a are supported between a diagrid 7 and a core lid 25. Support stools 11 extend through apertures 12 in a bottom support grid 4 and are locked in position by mounting nuts 14 on threaded end portions 13 of the stools, while their opposite ends traverse a plate 8 of the diagrid and are locked with respect thereto by means of annular nuts 16. Each core assembly 17, 17a comprises a metallic casing 18 formed with a lower end-fitting 19 of smaller cross-sectional area which penetrates into a corresponding support stool 11. Sodium coolant enters the space between the diagrid plate 8 and the support grid 4 via an aperture 6 in the pressure vessel 2 and passes into the support stools 11 through slots 21 and then flows upwardly into the core assemblies 17, 17a. The latter include canned fuel pins 22 containing either a fissile or a fertile material. The outer core assemblies may alternatively comprise reflector assemblies surrounded by neutronabsorbing assemblies. The upper end of each casing 18 comprises a head 23 which has an axial opening for the escape of coolant and which terminates in a conical bearing surface 24. Coolant outlets 29 are positioned in the core lid 25 so as to be exactly opposite the core assemblies, each outlet 29 being formed at its lower end with a conical bearing surface 30 capable of co-operating with the bearing surface 24 of the corresponding core assembly, The core lid 25 is supported by means of an annular flange 26 resting on a shoulder 10 of a cylindrical sidewall of the diagrid 7, being guided with respect to the latter by a positioning sleeve 27. Only two core assemblies are shown, assembly 17 being in the inoperative position as during reactor shut-down, while the assembly 17a is in. the operative position in which it is lifted by the coolant pressure so that its bearing surface 24 engages the corresponding bearing surface 30 in the lid 25, whereby the assembly 17a is axially locked.
Patent GB-1305800-A (GB)
Title: Temperature sensitive device with a bimetallic strip
Inventor: SCHWARM H
IPC: H01H37/60
Filed: 1970-12-23
Abstract: 1305800 Temperature responsive actuating elements EBERLE WERKE KG 23 Dec 1970 [23 Dec 1969 16 April 1970] 61149/70 Heading G1D [Also in Division H1] In a temperature sensitive device a bi-metal strip 12 is pivotally supported at one end in a recess 22 in a support 14 and retained there solely by the force of an overcentre blade spring 13 engaging the other end of the bi-metal and a second recess 15 in the support. In Fig. 1 the strip 12 and spring 13 are mounted end to end in the support 14 and the blade actuates contacts 19, 20 through a pin 18. A screw 21 forms an adjustable stop for the bi-metal 12 and thus sets the temperature at which the contacts are actuated. In a modification, Fig. 2, the blade spring 31 is located in a hole in the bi-metal and contacts 32 are directly mounted on the bi-metal. Various shapes of bi-metals are described Figs. 3-6 (not shown).
Patent GB-1272867-A (GB)
Title: Stabilisation of polymer compositions
Inventor: HOUGHTON KELVIN LONGTON
IPC: C08K5/526
Filed: 1969-12-17
Abstract: 1,272,867. Stabilizing polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 21 Oct., 1970 [17 Dec., 1969], No. 61474/69. Heading C3P. Polymer compositions comprising a chlorinated paraffin are stabilized with magnesium oxide, a tertiary organic phosphite and a polyol, in amounts of at least 0À05 weight per cent each by weight of the chlorinated paraffin. The polymer may be a polyolefin, chlorinated polyolefin, polyvinyl chloride or chlorinated polyvinyl chloride, particularly a polyethylene or copolymer of ethylene with propylene or vinyl acetate. The chlorinated paraffin may contain, on average, 7 to 40 carbon atoms and 40 to 75 weight per cent of chlorine. The polyol may be ethylene glycol, propylene glycol, glycerol, sorbitol, mannitol, pentaerythritol, dipentaerythritol or tripentaerythritol. The phosphite may be a trialkyl, triaryl, tri-(alkylaryl) or diarylalkylphosphite. The compositions may also include fillers, pigments, plasticizers, antioxidants and light stabilizers, and may be formed with the aid of volatile solvents or by milling. Examples describe compositions comprising polyethylene or ethylene/vinyl acetate copolymer, chlorinated paraffin wax, magnesium oxide, tri-(isodecyl) phosphite and pentaerythritol.